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| author | Austin Clements <austin@google.com> | 2017-03-24 12:02:12 -0400 |
|---|---|---|
| committer | Austin Clements <austin@google.com> | 2017-04-13 18:20:42 +0000 |
| commit | 42c121476217595d9eddbded70cfb6500eca8442 (patch) | |
| tree | 79e43d88d8ed73fc70fd7ed0722d894235acfb8e /src/syscall/exec_linux_test.go | |
| parent | 9d1b2f888ef4b8c19630df6af18cabfc42d911a9 (diff) | |
| download | go-42c121476217595d9eddbded70cfb6500eca8442.tar.xz | |
runtime: eliminate write barriers from alloc/mark bitmaps
This introduces a new type, *gcBits, to use for alloc/mark bitmap
allocations instead of *uint8. This type is marked go:notinheap, so
uses of it correctly eliminate write barriers. Since we now have a
type, this also extracts some common operations to methods both for
convenience and to avoid (*uint8) casts at most use sites.
For #19325.
Change-Id: Id51f734fb2e96b8b7715caa348c8dcd4aef0696a
Reviewed-on: https://go-review.googlesource.com/38580
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rick Hudson <rlh@golang.org>
Diffstat (limited to 'src/syscall/exec_linux_test.go')
0 files changed, 0 insertions, 0 deletions